noun, plural de·cen·ni·ums, de·cen·ni·a [dih-sen-ee-uh] /dɪˈsɛn i ə/.
Origin of decennium
Examples from the Web for decennium
We have much need to distinguish century from century and decennium from decennium.
He was occupied actively with teaching, but the dominant feature of the decennium was his assumption of the Darwinian doctrines.Thomas Henry Huxley; A Sketch Of His Life And Work|P. Chalmers Mitchell
The decennium extending from 1550 to 1560 was the good period of Ivan IV.
But with intellectual matters it is totally different; they change from century to century, nay, from decennium to decennium.Popular scientific lectures|Ernst Mach
These are the only monuments of early typography acknowledged to come within the present decennium.